From e96767b0bed0ff1a8a6ba31084798b59151a1921 Mon Sep 17 00:00:00 2001
From: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Date: Fri, 9 Apr 2010 13:07:55 +0300
Subject: [PATCH] --- yaml --- r: 194245 b: refs/heads/master c:
 68dd5b7a45d1935fcd32b786e8d3d3f7bb4bbfe7 h: refs/heads/master i:   194243:
 3fc77f966b61ded0d01363f4c314b6752c5602a8 v: v3

---
 [refs]                    | 2 +-
 trunk/net/mac80211/work.c | 7 ++++++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/[refs] b/[refs]
index 70e04c13040e..336da164a5cd 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 00236aedf1d2c49a18ae9ea00698d97705ff7289
+refs/heads/master: 68dd5b7a45d1935fcd32b786e8d3d3f7bb4bbfe7
diff --git a/trunk/net/mac80211/work.c b/trunk/net/mac80211/work.c
index 1e1ea3007b06..7bd8670379de 100644
--- a/trunk/net/mac80211/work.c
+++ b/trunk/net/mac80211/work.c
@@ -919,11 +919,16 @@ static void ieee80211_work_work(struct work_struct *work)
 		run_again(local, jiffies + HZ/2);
 	}
 
-	if (list_empty(&local->work_list) && local->scan_req)
+	mutex_lock(&local->scan_mtx);
+
+	if (list_empty(&local->work_list) && local->scan_req &&
+	    !local->scanning)
 		ieee80211_queue_delayed_work(&local->hw,
 					     &local->scan_work,
 					     round_jiffies_relative(0));
 
+	mutex_unlock(&local->scan_mtx);
+
 	mutex_unlock(&local->work_mtx);
 
 	ieee80211_recalc_idle(local);